Transom-operating device.



G. DIGKIE.

TRANSOM OPERATING DBVIGB.

APPLIUATION FILED MAE. 2, 1909.

Patented May 11, 1909.

WxTNEssEs TToRNEY 1HE NoRRls Farcss GEORGE DICKIE, OF SAN FRANCISCO, CALIFORNIA.

TRNSOM-OERAIING- DEVICE.

Specication of Letters Fatent.

vOriginal application filed September 1, 1908, Serial No. 451,140.

Serial No.

.Ratented May 11, 1909.

Divided and this application filed March 2, 1909.

V zen of the 'United States, residing in the city the door or window casings, in such a inanand county of San Francisco andV State of California, have invented new and useful Improvements in Transom-Operating Dev ices, of which the following is a speciiication.

' My invention relates to a device which. is especiall i designed for the opening, closing and automatically locking ot transoms and like closures,`such are employed above doors or windows.

It consists in the combination of parts, and in details of construction which ,will be more fully explained by reference to the accompanying drawing, in which-the tigure is a vertical section showing the device.

It is the object of in invention to provide a means for readily opening and closing hinged or pivoted transoms, which are usually located above doors or windows, and which are to be opened to a greater or less extent to provide ventilation.

My invention is designed to provide a device in which the operating mechanism is compact, and substantially concealed within ner as to avoid the projection of these parts into view.

A represents a transom which is hinged or pivoted as at A so that the upper edge is movable in an arc ot a circle about this hingeA It will be understood that this transom may also be hinged at the top, or centrally, so that one portion will turn outward, and the other inward; the operating devices being essentially the same in each case.

` 2 is a rod or bar iixed to the transom a short distance from the pivot or hinge line thereof, and extending horizontally to a point where it is connected with the operating device. A connection is made by means of links 3, and these links are connected with a screw-threaded nut 4, which is fitted to travel within a hollow cylindrical and inte riorly threaded sleeve 6. This sleeve is journaled in plates 7 which are let into the window casing, and thus this portion of the apparatus is effectively concealed. The sleeve has 'fixed upon it, near the outer end, a sprocket-wheel 8. rlhis sprocket-wheel is preferably fixed at a point contiguousl to the casing, and within a channel made in the casl l l l l l i i l ing, which channel may be covered or inclosed in any suitable manner.

An endless chain 9 passes around the sprocket-wheel, and extends downward within the channel in the casing, the lower end being exposed to a suflicient length to allow the operator to pull the chain, and thus turn the sprocket in one direction or the other. The turning ofthe sprocket also turns the interiorly screwithreaded cylinder and the nut l will thus be caused to travel in one direction or the other. rlhis nut has preterably a flattened extension 5, which is threaded at its upper and lower edges continuously with the thread upon the nut. This extension is ot such length as to serve as a guide to prevent the nut binding within the threads of the sleeve. rIhe outer end of the extension 5 is connected by a link 3 with the end of the arm 2, which is lixed to the transom as shown. |The link may also be made jointed, if found desirable, so that it can bend at this joint, and thus allow the outer end to follow the arc oi curvature of the arm 2, caused by the opening or closing of the transom, without allowing the link to bind in the interior of the outer end of the screw-threaded drum. The operation will then be as follows: Ey pulling upon one side or the other of the endless chain 9, the sprocket wheel 8 and the drum 6, to which it is iixed, will be revolved, the drum turning in its journal-bearings, and this causes the nut 4l to advance within the drum, and through its connection with the transom bar 2, the transom will be moved so as to open or close.

'The device is compact and cheap, and being almost entirely inclosed and out of view is well adapted for high class buildings and residences.

It will be seen that by reason of the nut, the screw-threads of the nut and the inclosing drum, the device will act automatically as a lock to retain the transom at any point to which it may have ,been opened, and no access can be had from the transom to the chain by which the mechanism is actuated.

The present application is a division ot a 'former application, tiled by me on the 1st day of September, 1908, Serial Number 451,140, for certain other improvements in transom-operating devices.

Having thus described my invention, what I claim and desire to secure by Letters Iatent is-n l. In a device for opening and closingtransoins and the like, a horizontally jour* naled interiorly threaded drum, a sprocket fixed to the drum, an endless chain passing around the s rocket, extending downward to a point within reach of the operator, a screwthreaded nut fitting the interior of the drum, and a link connecting the nut with the transom.

2. In a device for opening and closing transorns and the like, a horizontally journaled, interiorly screw-threaded drum fixed within the casing, a screw-threaded nut fitting the threads of the drum, said nut having' an extended screw-threaded guide plate, a flexible link having one end connecting with the outer end of said plate, a bar fixed to said transom at a distance from the pivot of said transom, and intersecting the axis ofl said screw, with which bar the opposite end of the link is connected, a sprocket fixed to the exterior of the screwthreaded drurn, and an endless chain passing around said sprocket and extending downwardly within reach of an operator. Y

3. In a transom opening, closing and locking device, connected plates7 a casing having a recessed space, the outer of said plates fixed to the casing, and an inclosed groove or channel extending downwardly in the outer portion of the casing, a horizontal, interiorly screw-threaded drurn journaled and turnable between the plates, a nut having a fiatthreaded extension, said nut fitting and turnable in the threads of the drum, a sprocket fixed upon the druin in line with the casing channel, an endless chain passing around said sprocket extending downwardly within the channel, a hinged or pivoted transom, a

ar fixed thereto at a distance from the pivot, and extending to a point in vertical plane with the guide plate of the nut, and flexible links connecting said plate with the transornactuating bar.

In testiinony whereof have hereunto set my hand in presence ofl two subscribing' witnesses.

GEORGE DICKIE.

Witnesses:

HENRY P. TnrooU, CHARLES A. PENFIELD. 

